Test environment: Linux marsboard 3.4.90 #9 SMP PREEMPT Thu Mar 3 18:28:43 CST armv7l armv7l armv7l gnu/linux (note: A20 Core Board)Method: Use a PPTP program to dialPrerequisite: The PPP,PPPD,PPTP program is installedDescription: Documents involved/etc/network/interfaces,/etc/ppp/chap-secrets,/etc/ppp/peers/vpn (self-created),Note: In the content, the same color
(Internet Service Provider) First transmits all the data to the VPN Server, then, the VPN Server is responsible for transmitting all the data to the target computer. There are two types of VPN technology in Windows 2000: 1. point Tunneling Protocol (PPTP): used for data encryption.
for small businesses with smaller numbers of computers. It also integrates the firewall, transmission and encryption functions, can be in full dynamic IP wide-area network set up VPN, while supporting ADSL, cablemodem, optical fiber, fixed IP and many other access methods. The number of 15,000 concurrent session connections, 2000 new sessions per second, and 50 VPN channels are supported. 200MHz cpu,32 m m
ifconfig.
Create an iptables file in the/etc/network/if-up.d/directory with the following content:#! /Bin/sh
Iptables-restore Add the execution permission to the script:Chmod + x/etc/NET/if-up.d/iptables
Modify/etc/sysctl. the conf content is as follows: There are two items not listed above. You can simply add them directly. Other projects mainly remove comments. In fact, you can directly copy the following content to the configuration file:Net. ipv4.ip _ forward = 1
Net. ipv4.conf. all. send_r
VPN password, enter a new VPN password and click Submit.
You can log on to the VPN Server by using the user name and VPN password.Well, after registration, the next step is to configure your IPhone. I have to say that the IPhone is awesome. There are three VPN connection m
using Internet connections, you can travel around the world, while in most places you can still connect to your office through the nearest local Internet access phone number. If your computer (and Office) has a high-speed Internet connection (such as a cable or DSL), you can use the highest Internet speed to communicate with the Office, the speed is much faster than that of any analog modem.VPN uses a link that requires authentication to ensure that only authorized users can connect to your net
Install the PPTP service and run the following command [html] viewplaincopyprint? Wgethttp: // www.5yun.org/Soft/linux/Openvz-vpn/openvps_vpn_centos-5-6.shchmod install PPTP service
Run the following command:
[Html]View plaincopyprint?
Wget http://www.5yun.org/Soft/linux/Openvz-vpn/openvps_vpn_centos-5-6.sh
Chmod a
There is no problem in testing VPN via intranet in the lab, but it won't work when it comes back in the house
VPN ServerWhere is the fault possible?When a client establishes a connection with an ISP (this connection uses the Point-to-Point Protocol in the VPN connection-PPP-part), the ISP assigns the client an IP address, a DNS server address, and a default gatew
The openwrt firmware needs to be compiled on the local virtual machine, and dependencies need to be continuously downloaded during the compilation process. Due to the existence of GFW, compilation may fail, so you need to compile the VM to connect to the VPN.The virtual machine system is CentOS6. The connection to PPTP is used as an example.First install the pptp client:Yum install
1. Install PPTP serverUpdate SoftwareApt-get UpdateInstalling PPTPDApt-get Install pptpd2. Configuring the PPTP serverEdit/etc/pptpd.conf with VIFind the following:#localip 192.168.0.1#remoteip 192.168.0.234-238,192.168.0.245Get rid of the #The above two behaviors are obtained after the VPN server IP and VPN clients ar
CentOS 6.8 command line can use Pptpsetup for PPTP dialing
1. Install PPP,PPTP and pptp-setup three packages first
Yum install-y PPP PPTP Pptp-setup
2. Connect using Pptpsetup
Pptpsetup--create VPN name--serv
1. VPN related source code in froyo.1.1 Java layer:A. UI source code:Packages/apps/settings/src/COM/Android/settings/VPNB. VPN Server Source Code:Frameworks/base/VPN/Java/Android/NET/VPNFramework/base/packages/vpnservices/src/COM/Android/Server/VPN
1.2 native layer:External/mtpd: used to control
In the front of the "Interserver one-click installation fast PPTP VPN Tutorial", we have used our VPS host to build PPTP and have a login account and password, as a webmaster will certainly not be used only for mobile phone internet use, Many users need to use their own computers to achieve the global VPN function. I c
is connected on demand, VPDN usually requires identity authentication (such as using CHAP and RADIUS)
2. define by protocol implementation type
This is the most important way for VPN vendors and ISPs to divide. According to the layered model, VPN can be established on the second layer or on the third layer (some even classify some higher-level security protocols into V
This is a general pptp vpn access. The intermediate VPN Server is generally served by Windows server. Here we use CiscoRouter Uter to replace Windows server as the PPTPVPN access server. Ipcef // to support MPPE, you must enable CEF! Vpdnenable! Vpdn-groupvpdn nbs
This is a general pptp
Graphic introduction to login VPN Server in Android system settings (with a URL that allows you to register a VPN account for free, please pay attention to it !), Androidvpn
Step 1: Open the main menu of your phone, select "Settings", and then select "wireless and network"
Step 2: Select "VPC Settings"
Step 3: Select "add VPC"
Step 4: Select "add vpn
Original link: http://peopleyun.com /? P = 488
To access multiple App Engine videos on a well-known video website, I set up a VPN based on PPTP on linode. This article will first introduce some information about PPTP VPN, next, we will introduce the creation steps.
PPTP
mechanism allows efficient use of tunnel available bandwidth and avoids unnecessary retransmission and buffer overflow. PPTP does not specify a specific algorithm for lower-layer control, but it does define some communication parameters to support such algorithm work.
Compared with other remote "dial-in" VPN, PPTP has a built-in
contact. In addition, in Jinan Center contact, configure a modem pool, in case of emergency, as the local city of the dial-in equipment use.
Shandong Securities VPN Network IP address planning: Jinan Central point of the LAN IP is 100.100.0.1, the subnet mask is 255.255.255.0, that is, the 100.100.0.0 network segment, the other city sales department's network segment address is 100.100.1.0 to 100.100.18.0, all over the city The business department's
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